Superheater for boilers



Y Dec. 16, 1930 R. H. M. ERDMANN l 1,785,441

SUPERHEATER FOR BOILERs Filed Dec. 20, 1928 2 Sheet-Sheet l v Fay. J.'

Inventor Mtorney Dec'. 16, 1930.

R. H. M. ERDMANN SUPERHEATER FOR BOILERS 2 sheets-Sheet' 2 vFiled Dec. 20. .1928' di Pateinsteicl Dec. 16,` 1,930 v c 41,785,441l` l' *i RQBEBTHQ MLERDMANN, vor JAMAIoMNEw" Yom'f d `Appui:asini'filed December 20,1928.-` seria1 N.327,275ff-I l, c rllhe present inventionfrelates to improve--V ments in attachments for domestic heating boilers, and has reference more particularly tol ausu'perheater fer association lwith the 5 boiler wherebythesteam liberated ron'rthe boiler is 'superhe'ated before `enterirt'g",the

ins that llead to radiators 'and pipes` or e Y otherlike heating apparatus.

One ofthe importantfobjects of the l0'entinventionl is to provide a superheater attachment i'orboilers wherein thejhoty gases escaping from the'lire box of the boiler may be utilized'to advantage in superheating the steam prior to the discharge of the gases into l5 the chimney. Y i Another important object-is to'provide a superheater than can be readilyand easily installed without necessitating any material alterations of vthe parts of the boiler or the 20 smoke Hue with which'the superheater structure is associated.

Another object is to provide a superheater .of the above mentioned'character thatis simple in construction, inexpensive, strong and 25 Vdurable and further welladapted to the pur- `pose for which it is designed. y y

Other objects and advantages of the invention will become apparent from the following description when `taken in connection` 30 with the accompanying drawings.

In the accompanying 'drawings wherein like reference characters indicate corresponding parts throughout the several views:

- Figure l is aside elevation of the superheater embodying my invention showing the manner in which the same is associated with a domestic boiler and the smoke Hue extending therefrom. l

4U' approximately. on the line 24e-.2 of Figure 1.

Figure 3 is a horizontal section takensubstantially upon Vthe Aline 3 3 of lFigure '1,

' fcasingff.l fzi looking in the'dir'ectionof the arrows.` Y

Figure 4; is a detail perspective viewrof Vpresent invention, and

Figure 5 is a detail perspective view of one diate'section-of the smoleflue is removed and Figure 2 is a vertical sectional view taken y e er heating app aratus V(not shown). Thev pipes e0 Y 4 andfl4 cooperate to` support the manifold y' "y the manifold forming a salient part of the` In the drawings wherein for the purpose,

' my sup-erheater is of" illustrationjis-shown preferred embodiment of my invention, the numeral l designates generally a conventional domestic boilertthatin;the-present instanceis' provided vwith two steamoutletsdenoted by theref- 55- erencefcharacters 2 and 3, respectively, and a sectional pipe 14 hascommunioation with Vthe upwardly extendingoutlets atthe topf' of theboiler in the mannerja's clearlyillu'strated "inFigure l. leadsvfrom lthe lire box 'of the boiler'togthe chimney 5 is shownat 6 also in,Figure"'1,

and inorder to operatively associate mysuperheaterwith the smoke flue, the intermey y positioned between thefend sections of the -smoke iue.

Myi

A proved superheater includes a. freci f tangular casing `Z .that-BisopenV at its respec@ tive ends, suitableclo'sures 8*, and9lbeing re- '7e'` movablyfitted on' the respective ends of thev rectangular casingand eachof'these closures` is lformed,withlaflange'd central opening 10 V for :'communicatienflwith the respective end r sectionsofthe 'smoke'flue 'n 1 Thefsuperheaterffllither includes theprov visionfof a'rectangular-shaped manifold 11 that `gconstructed from a hollow casting. I The 'piped' extends through the front Y side of the ,casing 'Zand is secured at its reeend Within `an@opening.formed in the front end Y of the manifold, which opening is denoted by the `reference characterl l2. VSimilar openings 13 'are formed vin the Vopposite lsides. of the manifoldadj acent the rearend portion thereof, and steamoutletpipes lllare fitted at one end in the respective openings 13, vthes'eoutlet ,pipes extending threugh the opposite sides of i c 11 centrally within theupper portion ofthe f `,Vllile 71 have shown and described the ca'sd `ing and the manifold'asbeing rectangular. in shape,it :is ,to be understood tha'tthe same d may be cylindrical if so desired, and Ido not wish to limit myselttothe particular convtourof either thec'asing or the manifold. c.

The bottom ofthe manifoldis formed withV lee The smoke fluethat 601' 29 thought t6 be readily obvgousifrom are een; struction disclosed and it will beapparent that'whenthe' hfotgasesland products of com'- l bustion are disfchargedfroml the fire boX of i their upper endsv in the several openings 15 and as is clearlyindicated iIiFigures 2' and 3, a` nut 17 is'threaded on eachjpipe for dispositionagainst the outer faceofthe respec- 'gtiye sides'ior bottom of the'manifoldll.

. 19 afford a means for Vconnecting the upper Vfree ends Vof thevarms ofreachV UJ-t'ube .to the A' substantially Ultube 185is"opera'tively' connected with the lower ends of each pairA D t pipe fenteridingffrinrtbel boiler through one f Cleiv'eldng'ppes 1.6: and'Suitablecouplings;

lower ends of the respective pairof Vertical Vpipes 16 and the Utubeslare arranged "in j spacedrelation with respecty to each other. as clearly' indicatedV 1n Figure 1. The lower ends ofA these Utubes terminate o a" slight dist ance t A above" the bottom' fofy thev casing;

thejboiler intothe Vflue 6, tliejsame will pass upwardly into the casing 7 around the spaced U-'tubes andthe pipe 16 aswellas themani-k fold1 11, thus thoroughly heating the steam j that circulates throughfthe'l manifold 'and' which maybein theseyera'l `U-'tubes and the pipesjc'onnecting thesame with the manifold before thefs'team is caused toy bedeliyered to' vfthe heatingapparatussuch'as kthe radiators locatedin' dierei'itjparts of'thej houseuor building, Globulesof water which maybeV in l the steam when it enters the manifold V1 1 i will collectfin the lower ends lof thev U-:tub'e's wlfiichA are disposedimmediately,aboye 'the i Y; intalie'openi'ng of the'c'a'sing andbe Vaporized 1 y so,

into steam by'the 4intense heatatthis V'point 'of said casing. 'The 5 waste of products 4of combustionfwill pass -through the top 'of the casinginto theupper section ofthe smolreflue `and will be dischargedfintofthe, chimney-k 5j.

It will thus be seen `fromV the foregoing de` scription' that I have` provided a superheater attachment for domestic boilers thatfwillat Y alltimes be positive'and efficient in carrying f l out the 'purposes for whichitli's designed,v'and due'tit's simplicity, thesuperheater canbe installed'inthe' Yheating system without ne? cess'itating1 any material alterationslf .Furthermore :the (Parts- -pnstitutmg th superheater ,ares'o constructed as to permit the same to bel readil'yf and' assembled "of` ClisilvSSembled, and -aCCess t0 vrtheyari'ousf` i i Vparts yarranged within the casing may be ob'4 `tainedwhenever necessary.v j i smoke flue that leads fromaboilena Ver'- Ytically Y disposed casing mounted `eXteriorlyV of the boiler forming a-"section of the-smoke Vflue and having intake and outlet openings at its lowerA and upper ends,respectiv,rely,aman- Y ifold arrangedwithin the'casing ands'paced from/the inner walls thereof, a steam supply wall of thecasing into the manifold, superyheated steam outlet pipes extending from the manifold through opposite walls of the cassaidl pipes constituting means for supporting the manifold in thecasing in ,spaced relation tothe walls thereof, and a series of spaced U-tubes communicating at'theirupper ends with the bottofmofithefmanifold and haVling:v their lfowermends disposed adj acentthe `intake openinglin the casing and adapted to collectwater globules from .the steam in the Amanifold and Vaporize said globules, the4 steam in the manifold beingsup'erheated by the products of combustion passing upwardly through the 'casing ffromthe smokeifluef In testimony whereof I affix lmy signatur-'e'.

1 ROBERTH-.MiERDMANN;

While I have shown the preferredzembodie i I nient inyentionit to'b'e understood that minor 'changesginthe size, l'shap ean l'v arrangement Vvof parts may be'resorted to with-j'V out departing from Vthe spirit ofl'thexinven'f *A i 1 tion andthe scopeof theappended'claiin. A 

